How does my vehicle’s AC system work?

The AC compressor pressurizes refrigerant gas, which moves to the condenser. The gas releases heat, condensing into a high-pressure liquid. After cooling, the liquid passes over evaporator coils to cool the air as it is blown through the vents.

What are the signs the system needs service?

Common indicators of an air conditioning system in need of service include warm and/or weak airflow through the vents, frequent on/off cycling of the system and a strange or musty odor.

Is the puddle of water under my car a sign of AC problems?

Not necessarily. Condensation typically builds up on the AC evaporator and the water is drained at the bottom of the vehicle. That’s normal, but a larger puddle combined with reduced AC performance could indicate a problem.

Does low refrigerant mean there’s a leak in the system?

In most cases the answer is yes. AC systems in older cars will experience refrigerant leakage over time, but a later-model vehicle that needs continual refrigerant recharging typically indicates a leak.

Can a new cabin air filter improve AC performance?

Yes. A very dirty or clogged cabin air filter can reduce the airflow of the AC system, reducing its cooling efficiency and making the system work harder than normal. Periodic cabin filter replacements help the AC system keep its cool.

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GM Genuine Parts 15-33814 (15921502) Black Heater Inlet and Outlet Hose Connector

GM Genuine Parts 15-33814 (15921502) Black Heater Inlet and Outlet Hose Connector

Product ID: 26224342

Details

Size
1 Count (Pack
Material
Metal
Brand
GM GENUINE
Color
Black
Item dimensions L x W x H
2.6 x 1.6 x
Connector Type
Coupling

🔗Quick snap-on retaining clip

⚙️OE-spec metal build

🛠️Easy DIY replacement

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VT8020

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Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Size
1 Count (Pack
Material
Metal
Brand
GM GENUINE

Description

🔧 Snap in reliability, drive with confidence!

SNAP ON RETAINING CLIP - Innovative clip design allows quick, tool-free installation and hassle-free removal.
DIY FRIENDLY REPLACEMENT - Simplifies maintenance with easy installation, saving time and avoiding costly mechanic visits.
PRECISION OE FIT FINISH - Engineered to GM’s exacting standards for seamless integration and reliable performance.
DURABLE METAL CONSTRUCTION - Built with robust metal materials to withstand heat and pressure, ensuring long-lasting durability.
TRUSTED GM GENUINE QUALITY - Backed by General Motors, guaranteeing authenticity and superior reliability over aftermarket parts.

The GM Genuine Parts 15-33814 Heater Hose Connector is a high-quality, metal coupling designed to replace your GM vehicle’s original heater hose connector. Manufactured to GM OE specifications, it ensures perfect fit, durability, and easy snap-on installation with a retaining clip, making it a trusted, hassle-free replacement part for maintaining your vehicle’s heating system.

Specifications

ASIN	B001S8FPP8
Best Sellers Rank	#328,021 in Automotive ( See Top 100 in Automotive ) #282 in Automotive Replacement Heater Hoses
Brand	GM GENUINE PARTS
Brand Name	GM GENUINE PARTS
Color	Black
Connector Type	Coupling
Customer Reviews	4.1 out of 5 stars 142 Reviews
Exterior Finish	Machined
Global Trade Identification Number	00707773316764
Included Components	Outlet Hose Connector
Item Dimensions	2.6 x 1.6 x 1.2 inches
Item Type Name	Outlet Hose Connector
Item Weight	0.03 Pounds
Item dimensions L x W x H	2.6 x 1.6 x 1.2 inches
Manufacturer	ACDelco
Manufacturer Part Number	15-33814
Manufacturer Warranty Description	24 Month / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18. (Parts Only) Please see ACDelco.com for more details.
Material	Metal
Material Type	Metal
Model Number	15-33814
Number of Pieces	1
Size	1 Count (Pack of 1)
Thread Type	NPT
UPC	707773316764
Unit Count	1.0 Count

Reviews

T**S

9.09.2017

A**R

6.09.2019

E**O

12.06.2025

T**E

28.04.2026

Q**T

1.03.2024

K**H

4.08.2018

A**.

21.02.2026

P**A

6.09.2023

I**A

9.03.2026

J**S

28.09.2025

A**7

16.09.2024

M**.

28.01.2025

J**S

20.01.2023

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